Improved car-brake



D. MYERS;

Car, Brake.

Patented Oct. 16, 1866.

N. PETERS, PHOTO-LITHOGRAPHER, WASHINGTOIL D C UNITED STATES PATENTOEEIoE.

DAVID MYERS, or CHICAGO, ILL'LINOIS.

IMPROVED CAR-BRAKE.

Specification forming part of Letters Patent No. 58,877, dated October16, 1866.

To all whom it may concern:

Be it known that I, DAVID MYERS, of Ohieago, in the county of Cook andState of 111i- .nois, have invented a new and useful Improvement inOperating Oar-Brakes,- and I do hereby declare and make known that thefollowing is a full, clear, and exact description of the same, referencebeing had to the accompanying drawings and the letters and figuresmarked thereon, which form part of this specification.

My said invention consists in a novel arran gement of mechanical devicesthrough which the ordinary bell-cord passes in each car composing thetrain, whereby the engineer, by simply pulling upon-the bell-cord, isenabled to apply all the brakes upon the train simultaneously, and bygiving the bell-cord a second pull may in like manner release saidbrakes, while at the same time the conductor may pull upon saidbell-cord for the purpose of signaling to the engineer in the usual1nanner without affecting the brakes, and the brakemen may likewiseapply the brakes in the ordinary way. i

To enable those skilled in the art to understand how to construct anduse my invention, I will proceed to describe the same withparticularity, making reference in so doing to the aforesaid drawings,in whieh-- Figure 1 is a transverse sectional view of a car, showing aside view of my invention as arranged therein. Fig. 2 is a top view ofmy invention, the case being removed at the line a; in Fig. l; and Fig.3 is a bottom view of the same, the case being removed at the line 3 insaid Fig. 1.

Similar letters of reference in the several figures denote the sameparts of my invention.

A represents a suitable stationary case or frame, in which the operatingparts of my invention are arranged and supported, and secured at the topof the car, as shown in Fig. 1, by means of the screws or bolts a, or inany other suitable manner.

B represents a movable block, which has a longitudinal sliding movementin a suitable groove or run in the frame A, and hasattached thereto acord, b, which passes down at the side of the car, as shown, and isconnected with the apparatus arranged beneath the car for applying andreleasing the brakes.

{D represents a pulley or sheave, which is arranged in connection withsaid block B.

E E are stationary pulleys, supported in suitable bearings in the frameA; and 0 repsents the bell-cord, which is arranged with respect to thesaid pulleys, as seen in Fig. 3.

F F represent two arms, arranged upon each side of the block 13, beingpivoted to the frame A at f, and being connected together by a crossbar,(I, so as to move uniformly and together.

H represents arms, pivoted at one end to the bars F, and held upon theperiphery of the wheels G G, which are fixed upon the shafts of thewheels or pulleys E by means of the springs I or their equivalent, asshown.

J represents a movable stop, made and arranged so as to be turned fromone side to the other by turning the handle L, projecting down throughthe case, which is secured in the desired position, however, by movablepins m, as shown in Fig. 3. In adjusting the position of the stop J, itshould always be turned toward the rear of the train.

The nature and construction of my inveir tion having been described, Iwill now describe its operation.

When the conductor desires to signal the engineer he pulls thebell-cord, and its friction upon the pulley E causes it, and also thefriction-wheel G, to revolve, and as the arm H is held in contact withsaid wheel G by the spring I, as aforesaid, the revolution of said wheelGr draws the levers F into the position indicated in Fig. 2, whereby thenotch or stop 0 is thrust in front of the slide B, and effectuallyprevents its moving up, and the cord 0 thus may be drawn as forcibly asdesired witlr out bringing any tension upon the cord 1), which isattached to the apparatus beneath the car, whereby the brakes areapplied and released.

WVhen, however, the engineer, seeing some urgent necessity for stoppingthe train, pulls upon the cord, the levers F are prevented from movingin to stop the block B by means of the stop J, and the tension of thebellcord therefore movcs said block B forward in. its appropriategroove, and thus draws upon the cord 11 and releases the power forapplying the brakes, which are then closed, and stop the train.

The mechanism beneath the car may be arranged so that a second pull uponthe bellcord will release the brakes, if desired.

Having described the construction and operation of my invention, I willnow specify what I claim and desire to secure by Letters Patent.

1. Controlling the movements of the sliding block B by means ofoscillating levers F, substantially as and for the purposes shown anddescribed.

2. Operating the levers F by means of the arms H, friction-wheels G, andsprings I, for holding the arms upon the said wheels, substantially inthe manner and for the purposes specified.

3. The combination of the above-mentioned parts with the sliding block Band the cord 1), connected with the apparatus beneath the car, arrangedand operating substantially as specified, and for the purposes setforth.

4.. In combination with the above, the arrangement of the bellcord,operating substantially as and for the purposes shown and described.

D. MYERS.

Witnesses W. E. Mamas, GEO. L. WATERMON.

